• These nine circles of fire are the nine Orders of Angels in the three Celestial Hierarchies. Dante, Convito II 16, says that the Holy Church divides the Angels into, “three Hierarchies, that is to say, three holy or divine Principalities; and each Hierarchy has three Orders; so that the Church believes and affirms nine Orders of spiritual beings. The first is that of the Angels; the second, that of the Archangels; the third, that of the Thrones. And these three Orders form the first Hierarchy; not first in reference to rank nor creation (for the others are more noble, and all were created together), but first in reference to our ascent to their height. Then follow the Dominions; next the Virtues; then the Principalities; and these form the second Hierarchy. Above these are the Powers, and the Cherubim, and above all are the Seraphim; hese form the third Hierarchy.” It will be observed that this arrangement of the several Orders does not agree with that followed in the poem. ↩